Pursuit is learned by 64 species by level and 38 by egg

Effect, in PokéAPI's words

“Has double power against, and can hit, Pokémon attempting to switch out.”

Who learns it

100 species in all, 6 of 16 games shown

Ultra Sun and Ultra Moon: 98 species

Species	Method	Level
Umbreon	Level up	Evolve, 1
Fearow	Level up	1, 8
Hitmonchan	Level up	1, 11
Hitmontop	Level up	1, 10
Rampardos	Level up	1, 10
Honchkrow	Level up	1
Spiritomb	Level up	1
Zoroark	Level up	1, 5
Bouffalant	Level up	1
Aegislash	Level up	1
Gumshoos	Level up	1, 7
Crabominable	Level up	1, 13
Marshadow	Level up	1
Murkrow	Level up	5
Zorua	Level up	5
Yungoos	Level up	7
Spearow	Level up	8
Dunsparce	Level up	8
Scyther	Level up	9
Scizor	Level up	9
Vespiquen	Level up	9
Absol	Level up	10
Cranidos	Level up	10
Type: Null	Level up	10
Silvally	Level up	10
Mankey	Level up	12
Primeape	Level up	12
Zangoose	Level up	12
Venipede	Level up	12
Whirlipede	Level up	12
Scolipede	Level up	12
Rattata	Level up	13
Raticate	Level up	13
Honedge	Level up	13
Doublade	Level up	13
Crabrawler	Level up	13
Doduo	Level up	15
Dodrio	Level up	15
Tauros	Level up	15
Croagunk	Level up	15
Toxicroak	Level up	15
Purrloin	Level up	15
Liepard	Level up	15
Skorupi	Level up, Egg	16
Drapion	Level up	16
Emolga	Level up	16
Beedrill	Level up	17
Treecko	Level up	17
Grovyle	Level up	18
Sceptile	Level up	18
Buizel	Level up	18
Floatzel	Level up	18
Duskull	Level up	22
Dusclops	Level up	22
Dusknoir	Level up	22
Blitzle	Level up	22
Zebstrika	Level up	22
Metang	Level up	23
Metagross	Level up	23
Deoxys	Level up	25
Wingull	Level up	26
Yanma	Level up, Egg	30
Yanmega	Level up	30
Pidgey	Egg
Ekans	Egg
Nidoran♀	Egg
Zubat	Egg
Paras	Egg
Diglett	Egg
Aerodactyl	Egg
Snorlax	Egg
Sentret	Egg
Spinarak	Egg
Aipom	Egg
Heracross	Egg
Sneasel	Egg
Skarmory	Egg
Houndour	Egg
Tyrogue	Egg
Larvitar	Egg
Zigzagoon	Egg
Taillow	Egg
Slakoth	Egg
Swablu	Egg
Shuppet	Egg
Starly	Egg
Stunky	Egg
Munchlax	Egg
Snivy	Egg
Patrat	Egg
Lillipup	Egg
Sandile	Egg
Karrablast	Egg
Joltik	Egg
Shelmet	Egg
Druddigon	Egg
Pawniard	Egg
Heatmor	Egg

Sun and Moon: 98 species

Species	Method	Level
Umbreon	Level up	Evolve, 1
Fearow	Level up	1, 8
Hitmonchan	Level up	1, 11
Hitmontop	Level up	1, 10
Rampardos	Level up	1, 10
Honchkrow	Level up	1
Spiritomb	Level up	1
Zoroark	Level up	1, 5
Bouffalant	Level up	1
Aegislash	Level up	1
Gumshoos	Level up	1, 7
Crabominable	Level up	1, 13
Marshadow	Level up	1
Murkrow	Level up	5
Zorua	Level up	5
Yungoos	Level up	7
Spearow	Level up	8
Dunsparce	Level up	8
Scyther	Level up	9
Scizor	Level up	9
Vespiquen	Level up	9
Absol	Level up	10
Cranidos	Level up	10
Type: Null	Level up	10
Silvally	Level up	10
Mankey	Level up	12
Primeape	Level up	12
Zangoose	Level up	12
Venipede	Level up	12
Whirlipede	Level up	12
Scolipede	Level up	12
Rattata	Level up	13
Raticate	Level up	13
Honedge	Level up	13
Doublade	Level up	13
Crabrawler	Level up	13
Doduo	Level up	15
Dodrio	Level up	15
Tauros	Level up	15
Croagunk	Level up	15
Toxicroak	Level up	15
Purrloin	Level up	15
Liepard	Level up	15
Skorupi	Level up, Egg	16
Drapion	Level up	16
Emolga	Level up	16
Beedrill	Level up	17
Treecko	Level up	17
Grovyle	Level up	18
Sceptile	Level up	18
Buizel	Level up	18
Floatzel	Level up	18
Duskull	Level up	22
Dusclops	Level up	22
Dusknoir	Level up	22
Blitzle	Level up	22
Zebstrika	Level up	22
Metang	Level up	23
Metagross	Level up	23
Deoxys	Level up	25
Wingull	Level up	26
Yanma	Level up, Egg	30
Yanmega	Level up	30
Pidgey	Egg
Ekans	Egg
Nidoran♀	Egg
Zubat	Egg
Paras	Egg
Diglett	Egg
Aerodactyl	Egg
Snorlax	Egg
Sentret	Egg
Spinarak	Egg
Aipom	Egg
Heracross	Egg
Sneasel	Egg
Skarmory	Egg
Houndour	Egg
Tyrogue	Egg
Larvitar	Egg
Zigzagoon	Egg
Taillow	Egg
Slakoth	Egg
Swablu	Egg
Shuppet	Egg
Starly	Egg
Stunky	Egg
Munchlax	Egg
Snivy	Egg
Patrat	Egg
Lillipup	Egg
Sandile	Egg
Karrablast	Egg
Joltik	Egg
Shelmet	Egg
Druddigon	Egg
Pawniard	Egg
Heatmor	Egg

Omega Ruby and Alpha Sapphire: 89 species

Species	Method	Level
Honchkrow	Level up	1
Spiritomb	Level up	1
Zoroark	Level up	1, 5
Bouffalant	Level up	1
Aegislash	Level up	1
Murkrow	Level up	5
Zorua	Level up	5
Scyther	Level up	9
Umbreon	Level up	9
Scizor	Level up	9
Vespiquen	Level up	9
Dunsparce	Level up	10
Hitmontop	Level up	10
Absol	Level up	10
Cranidos	Level up	10
Rampardos	Level up	10
Hitmonchan	Level up	11
Zangoose	Level up	12
Venipede	Level up	12
Whirlipede	Level up	12
Scolipede	Level up	12
Rattata	Level up	13
Raticate	Level up	13
Spearow	Level up	13
Fearow	Level up	13
Honedge	Level up	13
Doublade	Level up	13
Tauros	Level up	15
Croagunk	Level up	15
Toxicroak	Level up	15
Purrloin	Level up	15
Liepard	Level up	15
Skorupi	Level up, Egg	16
Drapion	Level up	16
Emolga	Level up	16
Doduo	Level up	17
Dodrio	Level up	17
Treecko	Level up	17
Grovyle	Level up	18
Sceptile	Level up	18
Buizel	Level up	18
Floatzel	Level up	18
Beedrill	Level up	22
Duskull	Level up	22
Dusclops	Level up	22
Dusknoir	Level up	22
Blitzle	Level up	22
Zebstrika	Level up	22
Metang	Level up	23
Metagross	Level up	23
Deoxys	Level up	25
Wingull	Level up	26
Yanma	Level up, Egg	30
Yanmega	Level up	30
Pidgey	Egg
Ekans	Egg
Nidoran♀	Egg
Zubat	Egg
Paras	Egg
Diglett	Egg
Aerodactyl	Egg
Snorlax	Egg
Sentret	Egg
Spinarak	Egg
Aipom	Egg
Heracross	Egg
Sneasel	Egg
Skarmory	Egg
Houndour	Egg
Tyrogue	Egg
Larvitar	Egg
Zigzagoon	Egg
Taillow	Egg
Slakoth	Egg
Swablu	Egg
Shuppet	Egg
Starly	Egg
Stunky	Egg
Munchlax	Egg
Snivy	Egg
Patrat	Egg
Lillipup	Egg
Sandile	Egg
Karrablast	Egg
Joltik	Egg
Shelmet	Egg
Druddigon	Egg
Pawniard	Egg
Heatmor	Egg

X and Y: 89 species

Species	Method	Level
Honchkrow	Level up	1
Spiritomb	Level up	1
Zoroark	Level up	1, 5
Bouffalant	Level up	1
Aegislash	Level up	1
Murkrow	Level up	5
Zorua	Level up	5
Scyther	Level up	9
Umbreon	Level up	9
Scizor	Level up	9
Vespiquen	Level up	9
Dunsparce	Level up	10
Hitmontop	Level up	10
Cranidos	Level up	10
Rampardos	Level up	10
Hitmonchan	Level up	11
Zangoose	Level up	12
Absol	Level up	12
Venipede	Level up	12
Whirlipede	Level up	12
Scolipede	Level up	12
Rattata	Level up	13
Raticate	Level up	13
Spearow	Level up	13
Fearow	Level up	13
Honedge	Level up	13
Doublade	Level up	13
Tauros	Level up	15
Croagunk	Level up	15
Toxicroak	Level up	15
Purrloin	Level up	15
Liepard	Level up	15
Treecko	Level up	16
Skorupi	Level up, Egg	16
Drapion	Level up	16
Emolga	Level up	16
Grovyle	Level up	17
Sceptile	Level up	17
Buizel	Level up	18
Floatzel	Level up	18
Doduo	Level up	19
Dodrio	Level up	19
Beedrill	Level up	22
Blitzle	Level up	22
Zebstrika	Level up	22
Metang	Level up	23
Metagross	Level up	23
Duskull	Level up	25
Dusclops	Level up	25
Dusknoir	Level up	25
Yanma	Level up, Egg	30
Wingull	Level up	30
Yanmega	Level up	30
Deoxys	Level up	33
Pidgey	Egg
Ekans	Egg
Nidoran♀	Egg
Zubat	Egg
Paras	Egg
Diglett	Egg
Aerodactyl	Egg
Snorlax	Egg
Sentret	Egg
Spinarak	Egg
Aipom	Egg
Heracross	Egg
Sneasel	Egg
Skarmory	Egg
Houndour	Egg
Tyrogue	Egg
Larvitar	Egg
Zigzagoon	Egg
Taillow	Egg
Slakoth	Egg
Swablu	Egg
Shuppet	Egg
Starly	Egg
Stunky	Egg
Munchlax	Egg
Snivy	Egg
Patrat	Egg
Lillipup	Egg
Sandile	Egg
Karrablast	Egg
Joltik	Egg
Shelmet	Egg
Druddigon	Egg
Pawniard	Egg
Heatmor	Egg

Black 2 and White 2: 86 species

Species	Method	Level
Honchkrow	Level up	1
Spiritomb	Level up	1
Zoroark	Level up	1, 5
Bouffalant	Level up	1
Murkrow	Level up	5
Zorua	Level up	5
Scyther	Level up	9
Umbreon	Level up	9
Scizor	Level up	9
Vespiquen	Level up	9
Dunsparce	Level up	10
Hitmontop	Level up	10
Cranidos	Level up	10
Rampardos	Level up	10
Hitmonchan	Level up	11
Zangoose	Level up	12
Absol	Level up	12
Venipede	Level up	12
Whirlipede	Level up	12
Scolipede	Level up	12
Rattata	Level up	13
Raticate	Level up	13
Spearow	Level up	13
Fearow	Level up	13
Tauros	Level up	15
Croagunk	Level up	15
Toxicroak	Level up	15
Purrloin	Level up	15
Liepard	Level up	15
Treecko	Level up	16
Skorupi	Level up, Egg	16
Drapion	Level up	16
Emolga	Level up	16
Grovyle	Level up	17
Sceptile	Level up	17
Buizel	Level up	18
Floatzel	Level up	18
Doduo	Level up	19
Dodrio	Level up	19
Beedrill	Level up	22
Blitzle	Level up	22
Zebstrika	Level up	22
Metang	Level up	23
Metagross	Level up	23
Duskull	Level up	25
Dusclops	Level up	25
Dusknoir	Level up	25
Yanma	Level up, Egg	30
Wingull	Level up	30
Yanmega	Level up	30
Deoxys	Level up	33
Pidgey	Egg
Ekans	Egg
Nidoran♀	Egg
Zubat	Egg
Paras	Egg
Diglett	Egg
Aerodactyl	Egg
Snorlax	Egg
Sentret	Egg
Spinarak	Egg
Aipom	Egg
Heracross	Egg
Sneasel	Egg
Skarmory	Egg
Houndour	Egg
Tyrogue	Egg
Larvitar	Egg
Zigzagoon	Egg
Taillow	Egg
Slakoth	Egg
Swablu	Egg
Shuppet	Egg
Starly	Egg
Stunky	Egg
Munchlax	Egg
Snivy	Egg
Patrat	Egg
Lillipup	Egg
Sandile	Egg
Karrablast	Egg
Joltik	Egg
Shelmet	Egg
Druddigon	Egg
Pawniard	Egg
Heatmor	Egg

Black and White: 85 species

Species	Method	Level
Honchkrow	Level up	1
Spiritomb	Level up	1
Zoroark	Level up	1, 5
Bouffalant	Level up	1
Murkrow	Level up	5
Zorua	Level up	5
Scyther	Level up	9
Scizor	Level up	9
Hitmontop	Level up	10
Cranidos	Level up	10
Rampardos	Level up	10
Buizel	Level up	10
Floatzel	Level up	10
Hitmonchan	Level up	11
Venipede	Level up	12
Whirlipede	Level up	12
Scolipede	Level up	12
Rattata	Level up	13
Raticate	Level up	13
Spearow	Level up	13
Fearow	Level up	13
Tauros	Level up	15
Umbreon	Level up	15
Vespiquen	Level up	15
Croagunk	Level up	15
Toxicroak	Level up	15
Purrloin	Level up	15
Liepard	Level up	15
Treecko	Level up	16
Emolga	Level up	16
Grovyle	Level up	17
Sceptile	Level up	17
Doduo	Level up	19
Dodrio	Level up	19
Absol	Level up	20
Beedrill	Level up	22
Zangoose	Level up	22
Blitzle	Level up	22
Zebstrika	Level up	22
Dunsparce	Level up	24
Duskull	Level up	25
Dusclops	Level up	25
Dusknoir	Level up	25
Metang	Level up	28
Metagross	Level up	28
Yanma	Level up, Egg	30
Yanmega	Level up	30
Deoxys	Level up	33
Wingull	Level up	34
Pidgey	Egg
Ekans	Egg
Nidoran♀	Egg
Zubat	Egg
Paras	Egg
Diglett	Egg
Aerodactyl	Egg
Snorlax	Egg
Sentret	Egg
Spinarak	Egg
Aipom	Egg
Heracross	Egg
Sneasel	Egg
Skarmory	Egg
Houndour	Egg
Tyrogue	Egg
Larvitar	Egg
Zigzagoon	Egg
Taillow	Egg
Slakoth	Egg
Swablu	Egg
Shuppet	Egg
Starly	Egg
Stunky	Egg
Munchlax	Egg
Skorupi	Egg
Snivy	Egg
Patrat	Egg
Lillipup	Egg
Sandile	Egg
Karrablast	Egg
Joltik	Egg
Shelmet	Egg
Druddigon	Egg
Pawniard	Egg
Heatmor	Egg